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(No Model.) 6 sheets-s-Aheet' 1. 7

` W.z A.FJOHNSTON&- A; W.JBR0WNE.' GAS ADMINISTERING APPARATUS.

No. 601,057. A .Patented Mar.; 22, 1898.

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(N'o Model.) v 6 She'ets-Shet 2. W. A JOHNSTON 8u A.W. BROWNB.

GAS ADMINISTERING APPARATUS.

Nq 601.057. .l f Patented Mar. 22', 1.898.

WITNESSES:

(No Model.) 6 S'heets--Sheet` 13.- n

W. A. JOHNSTON & A. W. BROW'NE.

GAS ADMINISTERING APPARATUS.

No. 601,057. Patented Mai. 22,1898.

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No. 601,057. Patentdlvrar. 22,1898.

WITNESSES. 7" INVENTo-R:

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W. A. JOHNSTON 8u A. W. BROWNB.

GAS ADMINISTERING APPARATUS.

(No. 601,05.7. A Pateppted Mar. 22,1898.l

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W. A. JOHNSTON .8v A. W. BROWNB. GAS ADMINISTBRING APPARATUS.

l1\0.60"1,05'7.. Patanjted Mar. 22,1898.

WWNESSES.

s UNITED STATESv PATENT OFFICE.

-WILLIAM AQ, JOHNSTON AND ARTHUR w. BROwNE, oF PRINOEs RAY, NEW

YORK, AssIcNoRs To TI-IE s. s: WHITE DENTAL MANUFACTURING. OOM- PANY, OF PHILADELPHIA, PENNSYLVANIA.

GAS-ADMINISTERING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 601,057, dated March 22, 1898.

I Application filed August 13, 1896. Serial No. 602,631. (No model.)

To all whom it may concern: right angle with Fig. 15 and partly in verti- Be it known that we, WILLIAM A. J OHNscal section in different planes, one of which TON and ARTHUR W. BROWNE, citizens of is indicated by the line 16 of Fig. 17; Fig. 17, the United States, residing at Princes Bay, a plan view with partsin section and the 5 in the county of Richmond and Stateof New gas-receiver broken away; Fig. 18, a View 55 York, have invented certain new and useful showing the gearing and the carrier for agear- Improvements in Gas-Administering Appaing-cover portion of the stand in plan and ratus; and we do hereby declarethe followsonne other parts in horizontal section; Fig. ing to be a full, clear, and exact description 19, a View showing some parts in plan with 1o of the invention, such as will enable others the stand in section on the line 19 of Fig. 15; 6o

skilled in the art to which it appertains to Fig. 20, an inverted plan View of the gearingmake and use the same. cover carrier with the stand-upright in sec- Our invention relates to cert-ain improvetion; Fig. 2l, a view showing parts in section ments, as hereinafter claimed,in apparatusof on the line 21 of Fig. 18. Figs. 22 and 23 I5 the class employed for administering gases show the gearing-controlling eccentric, Fig. 65

such as nitrous oXid, oxygen, &c.-by den- 22 being a section on the line 22 of Fig. 23. tists, surgeons, and physicians. A suitable stand A has its base provided In the accompanying drawings,which show with sockets or receptacles A"A for two suitable embodiments of our improvements, strong metallic gas-holders B B', shown as of zo Figure 1 is an elevation of the apparatus; cylindrical form. An uprightA2 of the stand 7o Fig. 2, a plan view of partsof the apparatus is firmly secured at its lower endto the standwith the gas-receivers and their'attachments base by screws a and is provided with two omitted and the rod of the support for the vertical guideways a a', adjustably engaged inhaler in section; Fig. 3, a section on the by the inner ends of two arms B2 B2, which z5 line 3 of Fig. 1. Fig. 4 is an enlarged View are provided with forked outer ends B3 B3, 75 in section on the line 4 of Fig. 1; Fig. 5, a for engagement with the necks b b of the gasview in section at a right angle to Fig. 4, and holders B B', so as to support the holders in Fig. 6 a perspective View of the handle of the upright position. Each supporting-arm B2 valve for governing iiow of gas from areceiver has one of its forks B3 provided with a set- 3o to the inhaler-tube. Fig. 7 shows one of the screw b for engaging a socket or recess in 8o double rings for connecting the two inhalerthe neck of a gas-holder, and its other fork tubes. Fig. 8 is a View in elevation of the incarries an outlet tube or nipple c, adapted haler and adjacent parts of the apparatus; to have a rubber tube C or C connected to Fig. 9, asection showing the connection of the its Outer end and to engage at its inner end v 3 5 tubes by which gas passes to the inhaler, with with an opening in the holder-neck above the 8 5 the valve mechanism by which flow of gas byV seat of a suitable valve in the neck. One or one of the tubes may be controlled; Fig. 10, more washers o', of rubber or other suitable a view, partly in elevation and partly in secmaterial,serve to make a tight joint about the tion, on the line 10 of Fig. 9; Fig. 11', a lonnippleat its connection with the neck-open- 4o gitudinal View of the valve shown in Figs. 9 ing to prevent leakage of gas. 9c and 10; Fig. 12, a section on the line 12 of Aswill be understood by reference to Figs. Fig. 11. Fig. 13 is a detailview, in vertical 1 and 13, when thev holders are seated upon central section, showing the connection bethe stand-base and the supporting-arms proptween the neck of a gas-holder and its sup-` erly adjusted in their guideways in the stand- 45 porting-arm andoutlet-tube. Fig. 14is asecvI'Ipright to bring them into position for en- 95 tion on the line 14 of Fig. 1, showing details gagement with the holder-necks proper enof construction. Figs. 15 to 23 show modiflgagement of the outlet-nipples with the necks cations. In these views Fig. 15 is an elevaof the holders is made by turning the adjusttion vof the apparatus with the inhaler omit ing-screws, which force the inner ends of the 5o ted; Fig. 16, a view, partly in elevation at a nipples into the neck-openings and compress Ioo the washers around the nipples against the holder-necks to prevent leakage of gas and allow of its escape only through or by way of the nipples. It will be seen that gas-holders of varying lengths may be employed by providing for the free adjustment of the supporting-arms. By making one or both of the base-sockets A' stepped, so as to provide different-sized sockets, (see dotted lines, Fig. 1,) gas-holders of varying diameters may be properly supported.

Gas-receivers D D', one for connection with each holder, charged with gas under high pressure, are of suitable construction tov adapt them to expand and collapse, as usual in apparatus of this class, and each has supporting connection with the stand, so as to be movable about with it. rlhis supporting connection for the receivers is shown as consisting of a yoke-like arm D2, secured midway its length to the stand-upright by screws (l and adapted to carry the receivers at its opposite ends in sockets or forks, each consisting of a fixed member d' and a movable member d2, adjustably connected with the fixed member by a screw (Z3. Each receiver is provided with a metallic coupling-tube having an annular recess c for engagement by the forked ends of the supporting-arm D3. The mouths of the gas-receivers have attached to them in wellknown way externally-threaded collars, one of which is shown at c', Fig. 14, to which their respective coupling-tubes E E' are screw-litted. The coupling-tube E of the receiver D is valved, as to be farther on in detail described, and a nipple ezserves for connecting the tube C, leading from the gas-holder B, so that gas may be allowed to flow from the holder to the receiver. The coupling-tube E' of the receiver D' is provided with a nipple for attachment of the tube C', by which gas is supplied from the holder D'. A screw-cap F of the coupling-tube E' is centrally perforated through its top and is provided with a metallic outlet-tube F', tightly fitting its perforation, bent as shown, and having a rubber tube G' connecting with its upwardly-projecting outer end fand leading to a suitable inhaler, as in turn to be described.

The coupling-tube E of the receiver D is internally threaded at its upper end for engagement with a rubber tube G, leading to the inhaler, the connection between the coupling-tube and rubber tube being by means of a Screw-collar in well-known way.

The supporting-stand is provided with a handle I, attached to the upper end of the stand-upright by screws I'. By means of the handle the apparatus may be lifted and moved as desired. This handle is made the medium by which keys for controlling the valves in the gas-holder necks have adjustable supporting connection with the stand, the handle being provided with perforated lugs 1313, through which pass rods J J. Handwheels J J' are provided at the upper ends of the vertically-adj ustable valve-controllin g rods, so as to be easily accessible, and these rods have sockets at their lower ends by which they are adapted to serve as keys or wrenches for engaging the stems of the valves, as will readily be understood. The engagement of one of the controlling key-rods with a valvestem is shown atj, Figs. 1 and 13.

To regulate and shut ott the passage of gas to the inhaler by way of the tube G and the coupling E, by which it is connected with thc receiver D, this coupling is provided with a suitable valve, the oscillating plug K of which is provided with a controlling-handle K', by means of which the plug ways or openings /t' may be caused to fully or partially register with the ways 7c' of the plug-seat or be moved into position entirely out of register therewith.

The connection of the gas-conveying tubes G G with the inhaler is by way of a connecting-tubeV L. 'lhe tube G terminates at its upper end in a metallic coupling L', within which is iitted the split expansible lower end of the connecting-tube L, the upper end of which is detachably engaged with the tubular body portion M of the inhaler by way of a branch pipe m thereof projecting into the connecting-tube and secured by a screw m'. The tubular body portion of the inhaler M is connected with the face-piece M', having an eXhalation-valve at M3, and is provided with a sliding section M3, having air-inlet openings m2 and with the handle m3, all of well-known construction. The connectingtube L is provided with a branch tube N, having the coupling N' for engagement with the upper end of the tube G' in well-known way. Valve mechanism by which to govern or entirely shut oit the passage of gas by way of the tube G' to the inhaler is provided as follows: A valve-plug N3, adapted to oscillate in the branch N of the connecting-tube, is provided with a stem N3, passing through the connecting-tube and actuated by a lever O, provided at its upper end with a linger knob or handle O'. The branch tube N constitutes the valve-plug casing or seat, and there is a way or opening a between the connecting-tube and its branch, adapted to be opened and closed by the valve which is formed with the angular way a' n3. The part a' of the valveway is adapted to communicate with thc way a, and the valveway portion n2 is adapted for communication with the coupling N' of the gas-supply tube G'. It will readily be seen that by means of the controlling-lever the flow of gas to the conn ecting-tube may be regulated as desired or entirely cut oft.

A gage or indicator is supported adjacent to the tubular body portion of thc inhaler by an arm O3, rigidly attached to the connecting-tube by way of a lug or boss o, fixed to this tube and through which the valve-stem passes. The indicator consists of the graduated plate 03, curved concentrically with the Valve stem. The controlling -lever of the valve is adapted to be engaged with the indicator-plate at the desired point by means of IOO IIC

' adjustment, with its lug engaging a hole: in

the plate. With the lever engaging the zerohole in the indicator the valve is entirely closed and when en gaged' With the hole 10 the fullest supply of gas is admitted. The supply is gradually diminished as the lever is lnoved from the hole 10 toward the zero-point, the smallest amount of gas which can be admitted being when the lever-lug is engaged with hole 1. Movement of the lever in opposite directions is limited by the stops ozat the ends of the indicator. Y

Theinhaler and the tubes G G are supported when not in use by a suitable rest P at the upper end of a rod P', which has vertically adjustable and detachable connectionY with the stand by means of a lug p on the upright thereof, provided with a bearing-opening in which the rod may be slid up and down and clamped by a set-screw p.

From the above description it will be seen that the gas-receivers may be properly supplied with gas from the gas-holders and the flow of gas to them shut off by turning movements of the hand-wheels controlling the valves of the holders; that the anestheticsay nitrous oXid-may be administered to a patient by way of the inhaler in quantity as desired, the amount administered being controlled by the valve in the' coupling-tube E; that oxygen may be administered in nicelycontrolled amount along with or independently of the nitrous oXid, and that in event of a patient being dangerously 'affected by the administration of the anesthetic its injurious effects may quickly be overcome by administering oXygen .in proper quantity. It will further be seen that the inhaler may be moved independently of the gas receiver or receivers Which are supported 'in fixed relation to the stand and that the operator is thus relieved of the weight of the gas receiver or receivers.

It will be understood that the apparatus may be employed for administering an anesthetic only or oxygen only, an obvious advantage of suc'h employment being that with one gas-holder in position for use the other might be' removed for recharging. Obviously some of the advantages and novel features of our improvements would be retained were the stand adapted to support but one gas-holder at a time with a receiver and the cooperating apparatus for the single holder and receiver.

In the modified apparatus shown in Figs. 15 to 23 two gas-holders B B and one gas-receiver D are employed, both holders being charged with the same kind of. gas, this modified apparatus not being adapted for the use of different gases at the same time. The valve-controlling key-rods J pass through a protecting-cover Q of the stand and through the hubs'of gear-wheels farther on to be described. Each key-rod is made in detachablyconnected parts, so that the upper part, with its hand-wheel, may be removed to be out of the way when desired, as will be understood by reference to Fig. 16. The mouth couplingtube R f the receiver is provided with two nipples r r for making connection by flexible tubes R R with the necks of the gas-holders, and the iiexible tube R2 for flow of gas to a suitable inhaler is connected with the receiver-mouth coupling-tube,

The valves in the necks of the gas-holders are adapted to be actuated by the foot in the following way: A carrier Q for the gearingcover portion Q of the stand is shown as formed with the stand-upright, and the lcover portion is detachably secured to this carrier by screws. The carrier is provided with an eccentric-bearing Q2, provided with three notches q in its upper end. An eccentric S is fitted to turn in the bearing and is upheld therein by its annular shoulder S. A pin s, projecting downwardly from the eccentricshoulder, is adapted t0 engage with the desired one of the notches in the bearing to hold the eccentric in the desired position of adjustment. The eccentric is milled at its upper end for engagement by the fingers and is fitted upon the upper end of a rod T, so as to be capable of sliding thereon. This rod at its lower end is provided with a foot-actuated wheel T'. The rod is mounted near its lower end in a .suitable bearing in the stand-base and is upheld by a collar t, secured to it above its bearing. The valve-controlling rods J J pass through the hubs u u of gears UU', the lower part of each rod being attened to engage With the hub of its respective gear, so as to cause the rod to partake of the turning movement of the gear. An intermediate or actuating gear V is secured to the rod T between the gears U U, the hubs of which are mounted to turn in, bearings w rw,'provided at the opposite ends of an arm W, constituting a part of the stand, this arm being securedby screws to the stand-upright.

The foot-actuated wheel is suitably constructed to present a frictional engagement with the foot, being shown as provided with IOO IIO

the inclined rubber ring X, attached to its periphery by a clamp-ring a, as will be apparent. The rod T has sufficient lateral play in its bearing in the stand-base to permit of being slightly inclined.

From Vthe above description it will be seen that with the actuating-gear in the position in which it is represented in Fig. 18 out of engagement with both of the gears U U no movement can be imparted to either of the valve-controlling key-rods by the foot. At such times these rods may be freely actuated by hand to control the gas-holder valves.

proper adjustment of the eccentric to the right or to the left the actuating-gear is caused to engage with the desired one of the gears U U for turning one or other of the key-rods by movement of the foot-wheel.

XVe claim as our inventionl. The stand for gas-administering apparatus, having the base provided with a receptacle for a gas-holder, the upright provided with a guideway, and a supporting-arm adjustable in said guideway for engagement with the gas-holder neck, substantially as and for the purpose set forth.

2. The stand for gas-administering apparatus, having the base provided with the receptacles for gas-holders, the upright provided with the guideways, and the supporting-arms adjustable in said guideways for engagement with the necks of the gas-holders, substantially as and for the purpose set forth.

3. The combination, in gas-administering apparatus, of the stand having its base provided with a receptacle and the upright provided with a guideway, a gas-holder provided with the valved neck and resting in the standreceptaole, a supporting-arm adjustable at its inner end in said guideway and provided at its outer end with forks for engagement with the gas-holder neck, the outlet-nipple carried by one of said forks for engaging an opening in the gas-holder neck, and the set-screw carried by thc other fork for engaging the gasholder neck, substantially as and for the purpose set forth.

i. The combination in gas-administering apparatus, of the stand, gas-holders supported thereby and provided with a valved neck, a gas-receiver, the coupling-tube attached to the mouth of the receiver, an arm connected with the stand and engaging the couplingtube for supporting the receiver in fixed relation to the stand, an inhaler movable independently of the receiver, the iiexible tube connected with the coupling-tube of the receiver for supplying gas to the inhaler, and lthe communicating tube between the gasholder neck and the coupling-tube of the receiver, substantially as and for the purpose set forth.

5. The combination, in gas-administering apparatus, of the stand, a gas-holder supported thereby and provided with a valved neck, a gas-receiver having supporting connection with the stand, a tube by which communication is made between the gas-holder neck and the mouth of the gas-receiver, and the key provided with a rod having vertically-adj ustable supporting connection with the stand and adapted to engage the ste m of the valve in the gas-holder neck to turn on and off the ilow of gas to the receiver from t-he holder by way of their communica-ting tube, substantially as and for the purpose set forth.

6. The combination, in gas-administering apparatus, of the stand having the upright provided at top with the handle, a gas-holder supported by the stand and provided with the valved neck, the rod having vertically-ad j ustable supporting conncction with the handle of the upright and provided with the key adapted to engage the stem of the valve in the gas-holder neck, the hand-wheel on the key-rod above the handle, a gas-receiver having supporting connection with the stand, and a tube by which communication is made botween the gas-holder neck and the mouth of the gas-receiver, substantially as and for the purpose set forth.

7. The combination, in gas-administering apparat-us, of the stand, the gas-holders supported thereby and provided with the valved necks, the gas-receiver having supporting connection with the stand, tubes by which communication is made between the necks of the gas-holders and the mouth of the gas-rcceiver, the key-'rods adapted to actuate the valves in the necks of the gas-holders, the gears for turning the key-rods, the actuatinggear, its rod adapted to be turned by foot, and the eccentric through which the actuatinggear rod passes and adapted to be turned and secured in different positions, substantially as and for the purpose set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

VILLIAM A. JOHNSTON. ARTHUR XV. BROlVNE.

Vitnesses:

SEYMOUR CASE, M. A. CoLE. 

